SLED system for long pulse multi-bunch linac

The compensation for transient beam loading effect requires that a modulate d RF pulsed is fed to the accelerator. A new SLED system to be able to gene rate the modulated RF pulse in long pulse multi-bunch linac is studied. The required waveforms of SLED input pulses are computed to generate RAMP and flat-top RF pulses. The optimization method of SLED parameters is formulate d. The results of cold test coincide with the theoretical prediction. RAMP and flat-top RF pulses are generated using SLED for the first time.